Note however that this is simply a special audio effect, and at any rate would be limited to the frequency range used for television broadcast transmissions, which neglects much of the ranges typically used for sonar, above the range of human hearing.

File history

FFT analysis of the sound made by the sonic barrier from Par Avion. Made by me using freqtweak. Scale is natural log based, from zero to 24KHz. The frequency bands seen, from left to right: 93-99 Hz 134-140 Hz 181-187 Hz 240-246 Hz (Pulse) 275-281 Hz (Pul